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A boy shouts towards a mountain and hears his echo 4.5 seconds later. If the mountain is 765 m from the boy, (a) calculate the speed of sound in the air and (b) its wavelength i…

A boy shouts towards a mountain and hears his echo 4.5 seconds later. If the mountain is 765 m from the boy, (a) calculate the speed of sound in the air and (b) its wavelength i…
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A boy shouts towards a mountain and hears his echo 4.5 seconds later. If the mountain is 765 m from the boy, (a) calculate the speed of sound in the air and (b) its wavelength if its has a frequency of 120Hz.

asked
User Iamyojimbo
by
8.4k points

1 Answer

5 votes

Answer:

340

Step-by-step explanation:

it because speed=2distance÷ time

answered
User Fanti
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7.9k points
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